JP2011106098A - Door structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door structure capable of preventing a finger pinching accident while securing the smooth turning of a door body. <P>SOLUTION: A cover 50 which is provided on a jamb 5 in such a manner that the cover 50 protrudes toward the other space S2 includes: an inclined portion 51 which is inclined to approximate the door body 10 in a closed state so as to form a space for permitting the turn of the side end 11 of the door body 10 in cooperation with an inside surface 6 of the jamb 5, and covers a gap between the inside surface 6 of the jamb 5 and the side end 11 of the door body 10; and a portion 55 to be fixed which is formed in the inclined portion 51 and used to drive a fixing member for fixing the cover 50 to the inside surface 6 of the jamb 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a door structure having a rotation support type door body that can rotate 110 ° around a rotation center line and a cover that covers a rotation support end of the door body.

For example, a door is often provided at the entrance of each room of a building. A general door structure is shown in FIG.

In FIG. 17, 2 is a wall fixed to a building and having an opening. A door main body 71 is rotatably provided in the opening of the wall 2 within a range of a predetermined angle (for example, 110 °). Usually, the opening of the wall 2 is often provided via a frame (not shown). Note that FIG.
7 (A), the door main body 71 indicated by a solid line indicates a closed state.

As shown in FIG. 18, the door main body 71 has a side end portion 72 that faces the inner side surface 4 facing the opening of the wall 2 in the closed state, and the door main body 71 has a side end portion 72. The hinge bracket 75 (rotation center line Y) provided on the inner side is rotatable around a predetermined angle range. A certain amount of gap is provided between the door main body 71 and the inner side surface 4 of the wall 2. This is because if there is no gap, as shown in FIG. 19, when the door body 71 rotates, the corner portion of the side end portion 72 hits the inner side surface 4 of the wall 2, and cannot be rotated any more.

Here, as indicated by an imaginary line in FIG. 18, if the gap (G) between the door body 71 and the inner surface 4 of the wall 2 is too large in a state where the door body 71 is rotated by a predetermined angle, the gap (G ) May be inserted for some reason. When the door body 71 is closed in this state, an accident may occur in which a person's finger is caught in the gap (G) and injured.

In order to prevent such an accident from occurring, it is conceivable to reduce the distance (L0) between the side end portion 72 of the door main body 71 and the inner side surface 4 of the wall 2. However, in this case, as shown in FIG. 19, the corner portion of the side end portion 72 of the door main body 71 interferes with the inner side surface 4 of the wall 2 during rotation, and rotation cannot be continued.

Therefore, as a measure for preventing a finger jamming accident while ensuring smooth rotation of the door body 71, a certain amount of gap (G) is provided between the door body 71 and the wall 2 and the gap (
G) Providing a cover (not shown) that covers the portion from the outside has been proposed (see, for example, Patent Document 1). This cover is an ultra-thin sheet that can be folded vertically.
It is configured to prevent a finger from being caught in the gap (G) by deforming and covering the door hinge part even during rotation of 1.
JP 2003-184420 A

By the way, in the case of the invention according to Patent Document 1, even if the cover design is devised, the appearance tends to deteriorate. Recently, the door has become an important component in the interior and is a serious problem from the viewpoint of aesthetic appearance.

In view of the above circumstances, an object of the present invention is to provide a door structure that can prevent finger filling while satisfying the aesthetics of the appearance and ensuring smooth rotation of the door body.

The invention of claim 1 has a wall that partitions one space and the other space in the building, and an opening that connects the one space and the other space is formed on the wall via a wooden frame. And a rotation support type door main body capable of opening and closing the opening is provided. The frame portion includes a pair of vertical frames and a pair of horizontal frames. The side end of the door body faces one corner and the other space facing the one space when closed. The door main body is 110 from the closed position in a direction in which the one corner approaches the inner surface of the vertical frame with the rotation center line inside the side end as a center. ° Configured to be rotatable and back-rotatable,
A pair of fixed projecting members are fixed to the building so as to oppose the upper and lower end positions corresponding to the rotation center line of the door body, and a pair of trials are provided at the upper and lower end positions of the door body. An engaging member is provided so that each guide groove contacts with each of the corresponding fixed projecting members,
Each of the fixed projecting members has a certain width and length, and crosses the center line in the width direction of the door body in a closed state in a plan view at a predetermined inclination angle and both ends in the length direction. Has a semicircular arc shaped one end and the other end,
The trial engagement member has a substantially equilateral triangular guide groove in plan view, and is one of the three corners, and the first corner near the one space is the width of the door body. An arc that is formed at a position that is on the same side as the one corner of the door body with respect to the direction center line, and that rotates relative to the first corner while sliding on one end of the fixed projecting member. A first rotation support recess that is recessed in shape is formed, and the other two corners, the second corner and the third corner, are the first corner with respect to the center line in the width direction. It is arrange | positioned so that it may become the other side, The other edge part of the said fixed protrusion member is set to the 2nd corner | angular part near the other corner | angular part of the said door main body among the said 2nd, 3rd corner | angular part. A second rotation support recess that is recessed in a circular arc shape that rotates relative to the second corner is formed. A radius corresponding to the length of the fixed projecting member when the first rotation support concave portion of the trial engaging member rotates relative to one end of the fixed projecting member is slidably contacted with the corner portion. An arc-shaped second large curvature guide surface is formed, and a second rotation support recess of the trial engagement member is fixedly projected between the third corner and the first corner. An arc-shaped first large curvature guide surface having a radius corresponding to the length of the fixed projecting member when rotating relative to the other end of the member in sliding contact is formed. In the door structure in which a rotation center transition guide surface that protrudes toward the side surface of the fixed projecting member and is in rolling contact with the side surface is formed between the two rotation support recesses,
A cover projecting toward the other space on the inner surface of the one vertical frame facing the other space;
The cover is inclined 20 ° so as to approach the door body in the closed state from the normal direction of the inner side surface of the one vertical frame and cooperates with the inner side surface of the one vertical frame to cooperate with the side end of the door main body. Forming a space that allows rotation of the part and covering the gap between the inner side surface of the one vertical frame and the side end of the door body, and the cover on the inside of the inclined part. It has a fixed part used for driving a fixing member for fixing to the inner surface, and the fixed part of the cover is formed so that an angle formed with the inner surface of the inclined part is 80 ° to 100 °. The cover has a wooden door structure which is a rigid body and is made of the same material as the frame portion.

In the case of the first aspect of the invention, since the inclined portion of the cover covers the gap between the inner side surface of the one vertical frame and the side end portion of the door body, the finger of a human hand is caught in the gap. Effectively prevent.
In addition, since the cover forms a space that allows rotation of the side end portion of the door body in cooperation with the inner surface of the one vertical frame, smooth rotation of the door body is ensured.

Further, since the inclined portion of the cover is inclined so as to approach the door body in the closed state, the gap can be covered without increasing the occupied volume in the other space, so that the appearance aesthetics are not impaired. .

In addition, a fixed portion used for driving a fixing member for fixing the cover to the inner side surface of the one vertical frame is formed inside the inclined portion that is difficult to see from the other space.

For this reason, even if a fixing member such as a nail is driven, it is difficult to be noticed.

In addition to having the above-described actions, the following actions are achieved. That is, when the door body is rotated from the closed position to the open position, the rotation center line of the door body is displaced during the rotation.
Accordingly, the door body moves relative to the stationary body (vertical frame, cover). That is, the door body moves away from the vertical frame by a distance corresponding to the displacement of the rotation center line and approaches the cover. As a result, the door body is further smoothly rotated without interfering with the vertical frame.

In addition, since the distance between the door body and the cover decreases as the door body rotates, if the fixing position of the cover to the vertical frame and the inclination angle of the inclined portion are appropriately selected, the side edges of the cover and the door body The lateral viewing gap between the two can be narrowed so that a human finger cannot enter, and a finger jamming accident can be easily and more easily prevented.

Further, since the fixed portion of the cover is formed so that the angle formed with the inner side surface of the inclined portion is 80 ° to 100 °, a fixing member such as a nail is driven into the fixed portion, while the vertical frame When fixing to the inner surface, it becomes easier to drive the fixing member with a tool (for example, a hammer), and the workability is further improved. In addition, since the head of the nail that has been driven in is hidden behind the inclined portion of the cover and cannot be seen from the outside, the appearance aesthetics are not impaired.

In addition, the cover is made of wood, which is the same type as the frame part, and it is not deformed and covers the vicinity of the rotation axis of the door body as in the conventional example. The above unity can be further increased, and the appearance aesthetics can be further improved.

According to the first aspect of the present invention, since the inclined portion of the cover covers the gap between the inner side surface of the one vertical frame and the side end portion of the door main body, the finger of a human hand is caught in the gap. Effectively prevent.

Further, since the inclined portion of the cover is inclined so as to approach the door body in the closed state, the gap can be covered without increasing the occupied volume in the other space, so-called in the conventional cover. You can wipe out the impression that was bottling. In addition, the fixed part used for driving a fixing member for fixing the cover to the inner side surface of the one vertical frame member is the outside (the other space)
Since it is formed inside the inclined portion that is difficult to see, it is not visible even when a fixing member such as a nail is driven. Therefore, finger filling can be prevented while satisfying the appearance aesthetics and ensuring smooth rotation of the door body. In particular, in the present invention, the center line of rotation of the door body is automatically adjusted during the rotation of the door body so that the gap between the side end of the door body and the inner side surface of the one vertical frame member is minimized. Therefore, it is possible to more effectively prevent finger filling while ensuring a smooth 90 ° rotation of the door body.

Further, since the fixed portion of the cover is formed so as to be perpendicular to the inner side surface of the inclined portion, the fixing member can be easily driven into the fixed portion with a tool (for example, a hammer), and the workability is further improved.

In addition, since the cover is made of the same type of material as the frame part with a rigid body, the cover is regarded as a part of the frame part, so that the unity of design can be further increased and the appearance aesthetics can be further improved. Can be improved.

As shown in FIGS. 1 and 5, the door structure according to the first embodiment is 90 to 110 ° (in this embodiment) at an opening formed on the wall 2 in the building via the frame portion 4. 110 °) a rotation support type door main body 10 is disposed so as to be rotatable, and a cover 50 which is a characteristic part of the present invention is provided in the vicinity of the rotation support portion of the door main body 10 to provide the door main body 10. This is intended to prevent an accident in which a finger is caught in a gap (G) between the vertical frame 5 on the wall 2 side and damaged. In FIG. 5, the cover 50 is not shown.

Specifically, as shown in FIG. 1, the wall 2 partitions one space S1 and the other space S2 in a building (for example, a general house or an office building). The wall 2 is formed with an opening that connects the one space S <b> 1 and the other space S <b> 2 via the frame portion 4.

The frame portion 4 includes a vertical frame 5 on the side that supports and rotates the door body 10, a vertical frame 5 a that is erected so as to face the vertical frame 5, and a pair that is disposed so as to oppose the vertical direction. The horizontal frames (8, 8) are formed. In this embodiment, the frame 4 is made of wood, but may be made of metal (for example, aluminum).

On the other hand, a cover 50 is attached to the inner surface 6 of the vertical frame 5 facing the other space S2 so as to protrude into the other space S2, as shown in FIG. The cover 50 is formed of the same material as that of the frame portion 4 in order to provide a sense of unity with the frame portion 4 in terms of design. In this embodiment, since the frame part 4 is made of wood, the cover 50 is also made of the same kind of wood. When the frame 4 is made of metal (for example, aluminum), the cover 50 is also made of the same kind of metal. The cover 50 can be integrally formed with the one vertical frame 5.

Specifically, the cover 50 is configured to fix the cover 50 to the inner side surface 6 of the vertical frame 5 and the inclined portion 51 that is inclined so as to approach the door body 10 in the closed state indicated by the solid line in FIG. 1 and a fixed portion 55, which is a portion used for driving a fixing member (such as a nail or a screw) 59, and an empty space having an acute angle in plan view in FIG. To secure a rotation-permissible space for the side end portion 11 of the door body 10 and to prevent a finger from entering and damaging the gap (G) between the side end portion 11 and the inner side surface 6. It is configured to prevent it in advance.

In this embodiment, as shown in FIG. 2, the inclined portion 51 of the cover 50 is closer to the door body 10 in the closed state indicated by the solid line than the normal direction N of the inner surface 6 of the vertical frame 5. It is formed so as to be inclined by an angle φ (φ = 20 ° in the present embodiment).

The presence of the cover 50 prevents the fingers of the human hand in the other space S2 from entering the gap (G) from the direction along the inner surface 6 of the vertical frame 5 (the directions of arrows C and D in FIG. 1). Of course, even if a finger of a hand tries to enter from a direction perpendicular to the inner side surface 6 of the vertical frame 5 (arrow E and F directions in FIG. 1), it is viewed from the arrow E and F directions (lateral direction). Tip 51 of inclined portion 51 of cover 50
Since the gap (lateral view gap) G1 between p and the other corner portion 12 of the side end portion 11 of the door body 10 is set to be narrow enough to prevent the fingers of the hand from entering, the entry is prevented. Is done.

Further, as shown in FIG. 2, the fixed portion 55 of the cover 50 has a surface that is β (β = 90 ° to 110 °, β = 90 ° in the present embodiment) with the inner side surface 52 of the inclined portion 51. It is provided inside the inclined portion 51 so as to intersect. Thus, when the cover 50 is a separate member from the vertical frame 5 and is fixed to the vertical frame 5, even if the fixing member 59 such as a nail is driven into the fixed portion 55, the head of the nail is external (the other space S <b> 2). It is not visible from the side) and does not impair the appearance aesthetics. Of course, the fixing member 59 is hidden behind the door body 10 from the one space S1 side.

The door body 10 has a longitudinal axis (rotation centerline Y) via a rotation support mechanism such as a hinge 19.
It can be rotated around the center. The hinge 19 is provided at a position separated from the inner side surface 6 by a length that does not interfere with the inner side surface 6 of the vertical frame 5 while the side end portion 11 of the door body 10 is rotating.

The door body 10 is moved from the closed position shown by a solid line in FIG.
When rotated (110 ° in this embodiment) and displaced to the open position indicated by the imaginary line in the figure, the opening of the wall 2 is opened and the one space S1 and the other space S2 communicate with each other. The door body 10
Is rotated from the open position to the closed position (that is, returning), the opening of the wall 2 is closed and the one space S1 and the other space S2 are blocked.

Here, an accident in which a finger is caught between the side end portion 11 of the door body 10 and the one vertical frame 5
However, even in such a case, the lateral view gap G1 generated between the inclined portion 51 of the cover 50 and the side end portion 11 of the door body 10 is in the closed position. Compared to some cases, it is not overly wide and can effectively prevent a finger pinching accident. The cover 50 cooperates with the vertical frame 5 to form a wide empty space at the back, so that the rotation of the side end portion 11 of the door body 10 is not hindered and the door body 10 can be smoothly rotated. Secured.

In addition, the inclined portion 51 of the cover 50 is inclined so as to approach the door body 10 in the closed state, and the occupied volume in the other space S2 is reduced, so that the so-called “bottom” impression is not given to the viewer and the appearance is aesthetic. Will not be damaged.

Further, the fixed portion 55 into which the fixing member 59 for fixing the cover to the one vertical frame is driven is formed inside the inclined portion 51 and is difficult to see from the other space S2. Does not decrease.
(Second Embodiment)

In the door structure of the second embodiment, the rotation center (Y1 or the like) is displaced when the door body 10 is opened and closed, and the gap (G) generated between the side end 11 and the vertical frame 5 is reduced. , Cover 50
The lateral view gap G <b> 1 generated between the door body 10 and the inclined portion 51 is further narrowed to further prevent finger jamming while ensuring smooth rotation of the door body 10.

Here, the door structure of the second embodiment has the same configuration as that of the first embodiment except that it has a rotation support mechanism that displaces the rotation center (Y1 and the like) when the door body 10 rotates. The rotation support mechanism of the main body 10 will be described in detail below, and the description of the cover 50 and the like will be simplified or omitted.

Specifically, as shown in FIGS. 6 and 10, the door structure of the second embodiment is basically formed on the wall 2 in the building via the frame portion 4 as in the first embodiment. A door main body 10 is rotatably provided in the opened opening 3 by 90 ° to 110 ° (110 ° in this embodiment), and includes a pair of fixed projecting members 20 and a pair of trial engaging members 30. It is the structure provided with the mechanism.

As shown in FIG. 10, the pair of fixed projecting members 20 (20U, 20D) is a building (vertical frame 5) so as to face the upper and lower end portions corresponding to the rotation center line (Y1 etc.) of the door body 10. Is fixed. Further, the pair of trial engaging members (30U, 30D) are fixed to the above-described upper and lower end portions (upper end portion 15, lower end portion 16) of the door body 10. Each trial engagement member (30U, 30D) has a guide groove 31, and the corresponding fixed engagement member (20U, 20D) contacts the guide groove 31 to rotate the door body 10. When doing so, it plays the role of displacing the rotation center line (Y1 etc.).

Specifically, as shown in FIG. 11, the upper fixed projecting member 20 </ b> U is formed on the inner surface 6 of the vertical frame 5 so as to face the upper end 15 position corresponding to the rotation center line (Y <b> 1, etc.) of the door body 10. It is fixed via an attachment member 29 or the like. Further, as shown in FIG. 12, the lower fixed projecting member 20 </ b> D is vertically arranged via an attachment member 29 or the like so as to face the lower end portion 16 position corresponding to the rotation center line (Y <b> 1 or the like) of the door body 10. The inner surface 6 of the frame 5 is fixed.

Each fixed projecting member (20D, 20U) has a certain width (w3) as shown in FIG.
And one end 21 and the other end 22 having a semicircular shape (radius a) are formed at both ends in the length direction. Each fixed projecting member (20D, 20U)
It has a predetermined thickness t3. In FIG. 13, reference numeral 26 denotes a fixed protruding member 20 (20D, 2
0U) side surface 25 is a horizontal surface on the ceiling.

Each of the fixed protruding members (20D, 20U) protrudes toward the upper and lower end portions (upper end portion 15, lower end portion 16) of the corresponding door body 10, and as shown in FIGS. The vertical frame 5 is provided so as to be inclined by a predetermined angle α (for example, 67 °) with respect to a direction perpendicular to the inner surface 6 of the vertical frame 5. Each fixed protrusion member (20D, 20U) has a mirror image relationship, and the shape seen from directly above is the same.

The pair of trial engaging members (30D, 30U) each have a guide groove 31 as shown in FIGS. And each trial engagement member (30D, 30U) respond | corresponds to the rotation center line (Y1 etc.) of the door main body 10 so that each guide groove 31 may contact with each corresponding fixed protrusion member (20D, 20U). The upper and lower end portions (15, 16) are provided. That is, as shown in FIG. 15, the lower trial engagement member 30D is attached to the lower end position 16 corresponding to the rotation center line (Y1 etc.) of the door body 10 so that the guide groove 31 faces downward. 41 is fixed. The upper trial engagement member 30U is
As shown in FIG. 14, the rotation center line of the door body 10 (with the guide groove 31 facing upward)
Y1 etc.) is fixed to the position of the upper end portion 15 via an attachment member 41U. These trial engaging members (30D, 30U) are mirror images and have the same shape as viewed from directly above.

As shown in FIG. 16, the guide groove 31 of each trial engagement member has a substantially equilateral triangular shape in plan view, and is a first corner portion of the three corner portions (32, 34, 36). One corner portion 32 is arranged so as to be on the same side as the one corner portion 13 of the side end portion 11 of the door body 10 with respect to the center line C in the width direction of the door body 10 shown in FIG. The first corner 34 is formed with a first rotation support recess 33 that is recessed in an arc shape that rotates relative to the one end 21 of the fixed protrusion (20D, 20U) while sliding.

The other two corners (34, 36) are arranged so as to be opposite to the one corner 32 with respect to the center line C in the width direction, and the corners (34, 36) of the corners (34, 36) are arranged. Of these, the corner portion (second corner portion) 34 disposed near the other corner portion 12 of the side end portion 11 of the door body 10 is connected to the other end portion 22 of the fixed-side protruding portion (20D, 20U). A second rotation support recess 35 that is recessed in an arc shape that rotates relative to the sliding contact is formed. Second corner 3 in which second rotation support recess 35 is formed
A second large curvature guide surface 38 is formed between 3 and the other corner portion (third corner portion) 36. The second large curvature guide surface 38 is relatively rotated while the first rotation support recess 33 of the trial engagement member (30D, 30U) is in sliding contact with the one end 21 of the fixed projection member (20D, 20U). In this case, the fixed protruding member 20 is formed in an arc shape having a radius b (= L3) corresponding to the length L3.

A first large curvature guide surface 37 is formed between the third corner 36 and the first corner 32 (first rotation support recess 33). In the first large curvature guide surface 37, the second rotation support recess 35 of the trial engagement member (30D, 30U) is fixed to the fixed protrusion member (20D, 2).
0U), the fixed projecting member (20D, 2)
0U) having a radius b (= L3) corresponding to the length L3. The first
Between the rotation support recess 33 and the second rotation support recess 35 of the fixed protrusion member (30D, 3
A rotation center transition guide surface 39 that protrudes toward the side surface 26 (0U) (an arc shape having a radius c) and makes rolling contact with the side surface 26 is formed.

The operation in the case of the door structure according to the second embodiment will be described below. Since each fixed-side protrusion (20D, 20U) has a mirror image relationship as described above and the shape viewed from the arrow line E in FIG. 10 is the same, the same shape is denoted by reference numeral 20 and fixed. The protruding member will be described.
Similarly, each trial engagement member (30D, 30U) is also in a mirror image relation as described above, and the shape viewed from the arrow line E in the figure is the same. The trial engagement member will be described. The mounting members (29, 41) are not shown. Further, as described above, the fixed projecting member 20 is inclined by a predetermined angle α (for example, 67 °) with respect to the direction perpendicular to the inner surface 6 of the vertical frame 5, and the door body in the closed state shown in FIG. 10 cross the center line C in the width direction at the angle α.

When the door body 10 is rotated 90 ° to 110 ° from the closed state shown in FIG. 6 and displaced to the open state position, as shown in FIG. While the one corner 13 of the portion 11 approaches the inner surface 6 of the vertical frame 5, the first rotation support recess 33 and the fixed protrusion of the portion of the guide groove 31 of the trial engagement member 30 on the door body 10 side are fixed. The one end 21 of the member 20 comes into sliding contact with each other and rotates relative thereto. That is, the trial engagement member 30 (and thus the door main body 10) is configured so that the center of the one end portion 21 of the solid protrusion 20 is the rotation center line (Y1
) Rotate as.

At this time, the other end portion 22 of the fixed protrusion member 20 is in sliding contact with the second large curvature guide surface 38 of the guide groove 31 of the trial engagement member 30, so that the trial engagement member 30 is the length of the fixed protrusion member 20. Displacement in the vertical direction is restricted. Therefore, the door body 10 does not rattle during rotation. Here, since the door body 10 does not rattle during rotation, smooth rotation is ensured, and a large gap cannot be formed between the side end portion 11 of the door body 10 and the inner side surface 6 of the vertical frame 5. It will be.

In this way, the door body 10 rotates around the center of the one end 21 of the solid protrusion 20 as the rotation center line (Y1) during the initial rotation. At this time, the rotation center line (Y1) Is located on the same side as the one corner 13 of the side end 11 of the door body 10 with respect to the center line (C) in the width direction of the door body. Therefore, the locus of the one corner portion 13 accompanying the rotation of the door body 10 is
The center of rotation has an arc shape smaller than the conventional example (FIG. 17) fixed on the center line (C) in the width direction, and does not interfere even if the gap (G) between the inner surface 6 of the vertical frame 5 is narrow. . The door body 1
The other corner portion 12 of the side end portion 11 of 0 is the rotation center line (Y1) with respect to the door body width direction center line (C).
) On the opposite side, and rotates in a direction away from the inner surface 6 of the vertical frame 5 as the door body 10 rotates. On the other hand, the cover 50 is provided at a position close to the locus within a range where the inclined portion 51 does not touch the rotation locus of the side end portion 11 of the door body 10. Therefore, the other corner 1 of the door body 10 is
2 does not interfere with the vertical frame 5 and the cover 50, and the lateral view gap G1 between the side end portion 11 of the door body 10 and the cover 50 can be reduced.

Thus, during the rotation of the door body 10, the gap (G) between the door body 10 and the vertical frame 5 can be reduced so that a human finger or the like cannot enter, and the door body 10 and the cover 50 are inclined. The lateral viewing gap G1 between the portion 51 and the gap 51 can be set to the same level as or less than the gap (G). Therefore, it is possible to prevent a finger jamming accident.

Further, as shown in FIG. 8, when the door body 10 is further rotated, the trial engagement member 30 is rotated.
The rotation center transition guide surface 39 of the guide groove 31 and the side surface 26 of the solid-side protruding portion 20 come into rolling contact, and the rotation center line (Y12) of the trial engagement member 30 (and therefore the door body 10) is The first rotation support recess 33 smoothly moves along the rotation center transition guide surface 39 to the second rotation support recess 35. At this time, the one end portion 21 of the fixed projecting member 20 is in sliding contact with the first large curvature guide surface 37 of the guide groove 31 of the trial engagement member 30, and the other end portion 22 is the second end portion of the guide groove 31. Since the sliding contact with the large curvature guide surface 38 is performed, the trial engagement member 30 is restricted from displacement in the length direction of the fixed projecting member 20.
Therefore, the rolling contact between the rotation center transition guide surface 39 of the guide groove 31 of the trial engagement member 30 and the side surface 26 of the solid-side protruding portion 20 is smoothly performed, and the rotation center line (Y12) of the door body 10). ) Transition is smooth. Therefore, the door body 10 does not rattle. At this time, the lateral view gap G1 between the side end portion 11 of the door body 10 and the inclined portion 51 of the cover 50 is so narrow that a human finger cannot enter.

When the door body 10 is further rotated, the second rotation support concave portion 35 of the guide groove 31 of the trial engagement member 30 comes into sliding contact with the other end portion 22 of the solid projecting portion 20 and relatively rotates. The trial engagement member 30 (and thus the door body 10) rotates with the center of the other end 22 of the solid protrusion 20 as the rotation center line (Y2). At this time, the fixed protruding member 2
One end 21 of 0 is the first large curvature guide surface 37 of the guide groove 31 of the trial engagement member 30.
Therefore, the trial engagement member 30 is restricted from displacement in the length direction of the fixed projecting member 20, and the door body 10 does not rattle.

Here, when the door body 10 rotates in the direction of the arrow Q and reaches the open state position shown in FIG.
This means that the rotation center line (Y1, Y2) has moved relative to the vertical frame 5 from the closed position indicated by the solid line. That is, as a result of the rotation, the door body 10 is separated from the vertical frame 5 by the amount of displacement of the rotation center line in the directions of arrows C and D, and is moved to the cover 50 by the amount of displacement of the rotation center line in the directions of arrows E and F. It will approach. Thereby, the door body 10 is ensured to rotate smoothly without interfering with the vertical frame 5. Further, since the distance between the door body 10 and the cover 50 is reduced with the rotation of the door body 10 (during rotation in the arrow Q direction), the fixing position of the cover 50 to the vertical frame 5 and the inclination of the inclined portion 51 are reduced. If the angle φ is selected in consideration of the moving distance of the door body 10, the lateral viewing gap G1 can be narrowed so that a human finger cannot enter,
It is easy to prevent a finger jamming accident.

It is a top view for demonstrating the whole structure of the door structure which concerns on 1st Embodiment. It is a transverse cross section for explaining the cover of the door structure concerning a 1st embodiment. It is a perspective view which shows the cover of the door structure which concerns on 1st Embodiment. It is a figure for demonstrating the arrangement position with respect to the vertical frame of the cover of the door structure which concerns on 1st Embodiment. It is a front view for demonstrating the whole structure of the door structure which concerns on 1st Embodiment. It is a top view for demonstrating the whole structure of the door structure which concerns on 2nd Embodiment. It is FIG. (1) for demonstrating operation | movement of the door structure which concerns on 2nd Embodiment. It is FIG. (2) for demonstrating operation | movement of the door structure which concerns on 2nd Embodiment. It is FIG. (3) for demonstrating operation | movement of the door structure which concerns on 2nd Embodiment. It is a front view for demonstrating the whole structure of the door structure which concerns on 2nd Embodiment. It is a figure for demonstrating the upper fixed protrusion member, (A) is a front view, (B) is a bottom view. It is a figure for demonstrating a lower fixed protrusion member, (A) is a front view, (B) is a top view. It is a figure which shows the shape of a fixed protrusion member, (A) is a front view, (B) is a side view. It is a figure for demonstrating the upper trial engaging member, (A) is a longitudinal cross-sectional view, (B) is a top view. It is a figure for demonstrating a lower trial engaging member, (A) is a longitudinal cross-sectional view, (B) is a bottom view. It is a figure for demonstrating the guide groove of a trial engagement member. It is a figure for demonstrating rotation of the door main body in the conventional door structure. It is a figure for demonstrating the rotation operation | movement of the door main body in the conventional door structure. It is a figure for demonstrating the malfunction in the conventional door structure.

2 Wall 4 Frame portion 5 Vertical frame 6 Inner side surface of vertical frame 7 Door contact 10 Door body 11 Side end portion 12 Other corner portion 13 Corner portion 20 Fixed protruding member 20D Fixed protruding member below
Fixed projecting member 30 on 20U Trial engagement member 30D Trial engagement member 31 on lower trial engagement member 30U Guide groove 32 First corner 33 First rotation support recess 34 Second corner 35 Second Rotation support recess 36 third corner 37 first large curvature guide surface 38 second large curvature guide surface 39 rotation center transition guide surface 50 cover 51 inclined portion 55 fixed portion Y1, Y2, Y12 rotation center line C Door body width direction center line

Claims (4)

There is a wall that partitions one space and the other space in the building, and an opening that connects the one space and the other space through a frame is formed on the wall, and the opening is An openable and closable rotation support type door body is provided, and the frame part is composed of a pair of vertical frames and a pair of horizontal frames, and the door body is in a vertical state when one of the pair of vertical frames is closed. The door body has a side end facing the inner side surface, and the side end of the door body has one corner facing the one space and the other corner facing the other space when the door is closed. The door body is configured to be able to rotate 110 ° from the closed position and return to rotate in a direction in which one corner approaches the inner surface of the vertical frame with the rotation center line inside the side end as a center. Door structure,
A cover projecting toward the other space on the inner surface of the one vertical frame facing the other space;
The cover is inclined so as to approach the door body in the closed state and cooperates with the inner surface of the one vertical frame to form a space that allows rotation of the side end portion of the door main body, and the one vertical Used to drive the fixing member for fixing the cover to the inner side surface of the one vertical frame inside the inclined portion that covers the gap between the inner side surface of the frame and the side end portion of the door body and the inner side of the inclined portion. A door structure characterized by having a fixed portion. A pair of fixed projecting members are fixed to the building so as to oppose the upper and lower end positions corresponding to the rotation center line of the door body, and a pair of trials are provided at the upper and lower end positions of the door body. An engaging member is provided so that each guide groove contacts with each of the corresponding fixed projecting members,
Each of the fixed projecting members has a certain width and length, and crosses the center line in the width direction of the door body in a closed state in a plan view at a predetermined inclination angle and both ends in the length direction. Has a semicircular arc shaped one end and the other end,
The trial engagement member has a substantially equilateral triangular guide groove in plan view, and is one of the three corners, and the first corner near the one space is the width of the door body. It is formed at a position on the same side as the one corner of the door body with respect to the direction center line, and the first corner rotates relative to one end of the fixed-side protruding portion while sliding. A first rotation support recess recessed in an arc shape is formed, and the other two corners, the second corner and the third corner, are the first corner with respect to the center line in the width direction. Is arranged on the opposite side, and the second corner portion of the second and third corner portions closer to the other corner portion of the door body has the other of the fixed-side protruding portions. A second rotation support recess recessed in an arc shape that rotates relative to the end portion while sliding is formed, and the second corner portion and the third corner portion are formed. A radius corresponding to the length of the fixed projecting member when the first rotation support concave portion of the trial engaging member rotates relative to one end of the fixed projecting member is slidably contacted with the corner portion. An arc-shaped second large curvature guide surface is formed, and a second rotation support recess of the trial engagement member is fixedly projected between the third corner and the first corner. An arc-shaped first large curvature guide surface having a radius corresponding to the length of the fixed projecting member when rotating relative to the other end of the member in sliding contact is formed. The door structure according to claim 1, wherein a rotation center transition guide surface that protrudes toward a side surface of the fixed projecting member and makes rolling contact with the side surface is formed between the two rotation support recesses. 3. The door structure according to claim 1, wherein the fixed portion of the cover is formed so that an angle formed with an inner surface of the inclined portion is 80 ° to 100 °. The door structure according to any one of claims 1 to 3, wherein the cover is a rigid body and is formed of the same material as the frame portion.

Images